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Numbers k such that k concatenated with k+1 is a lucky number.
1

%I #11 Jul 28 2021 04:21:25

%S 6,10,18,30,40,46,52,54,60,66,76,82,114,138,144,160,162,178,196,210,

%T 214,234,240,246,252,258,264,274,306,312,318,322,358,376,382,390,418,

%U 426,454,466,468,472,484,498,502,508,510,520,528,552,558,562,588,592

%N Numbers k such that k concatenated with k+1 is a lucky number.

%Y Cf. A000959, A032651.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, May 15 1998

%E More terms from _Sascha Kurz_, Mar 24 2002